Physics
According to Newton, the viscous force acting between liquid layers of area A and velocity gradient Δv / Δz is given by F=−ηadv/dvz, where η is constant called
23
Aug
According to Newton, the viscous force acting between liquid layers of area A and velocity gradient Δv / Δz is given by F=−ηadv/dvz, where η is constant called According to Newton the viscous force acting between liquid layers of area A and velocity gradient Δv / Δz is given by F=−ηadv/dvz where η is constant [...]
The frequency of vibration ′f′ of a mass ′m′ suspended from a spring of spring constant k is given by a relation of this type, f = Cm^x K^y; where C is a dimensionless quantity. The value of x and y are
23
Aug
The frequency of vibration ′f′ of a mass ′m′ suspended from a spring of spring constant k is given by a relation of this type, f = Cm^x K^y; where C is a dimensionless quantity. The value of x and y are f=Cm^xK^y; where C is a dimensionless quantity. The value of x and y [...]
In a particular system the units of length, mass and time are chosen to be 10 cm, 10 g, and 0.1 s respectively. The units of force in this system will be equal to ?
23
Aug
In a particular system the units of length, mass and time are chosen to be 10 cm, 10 g, and 0.1 s respectively. The units of force in this system will be equal to ? 10 g and 0.1 s respectively. The units of force in this system will be equal to ? In a [...]
Turpentine oil is flowing through a tube of length l and radius r. The pressure difference between the two ends of the tube is p. The viscosity of oil is given η= p(r2−x2) / 4vl, where v is velocity of oil at a distance x from the axis of the tube. The dimensional formula of viscosity η is
23
Aug
Turpentine oil is flowing through a tube of length l and radius r. The pressure difference between the two ends of the tube is p. The viscosity of oil is given η= p(r2−x2) / 4vl, where v is velocity of oil at a distance x from the axis of the tube. The dimensional formula of [...]
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Turpentine oil is flowing through a tube of length l and radius r. The pressure difference between the two ends of the tube is p. The viscosity of oil is given η= p(r2−x2) / 4vl ,
where v is velocity of oil at a distance x from the axis of the tube. The dimensional formula of viscosity η is ,
The time dependence of a physical quantity P is given by P = P0 exp (− αt2), where α is a constant and t is time. The constant α
23
Aug
The time dependence of a physical quantity P is given by P = P0 exp (− αt2), where α is a constant and t is time. The constant α The time dependence of a physical quantity P is given by P=P0 exp (−αt2) where α is a constant and t is time. The constant α [...]
If P represents radiation pressure, C represents the speed of light, and Q represents radiation energy striking a unit area per second, the non-zero integers x, y and z such that P^xQ^yC^z is dimensionless, find the values of x,y and z.
23
Aug
If P represents radiation pressure, C represents the speed of light, and Q represents radiation energy striking a unit area per second, the non-zero integers x, y and z such that P^xQ^yC^z is dimensionless, find the values of x,y and z. and Q represents radiation energy striking a unit area per second C represents the [...]
An equation is given as (p+a / V^2)=b θ/V , Where p= pressure V=volume and θ= absolute temperature. If a and b are constants, then dimensions of a will be
23
Aug
An equation is given as (p+a / V^2)=b θ/V , Where p= pressure V=volume and θ= absolute temperature. If a and b are constants, then dimensions of a will be An equation is given as (p+a / V^2)=b θ/V then dimensions of a will be Where p= pressure V=volume and θ= absolute temperature. If a [...]
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves
22
Aug
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 Years Solved 1988 - 2019 Physics [...]
Which of the following acts as a circuit protection device ?
22
Aug
Which of the following acts as a circuit protection device ? Which of the following acts as a circuit protection device ? August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,
A steady current of 1.5 A flows through a copper voltameter for 10 min. If the electrochemical equivalent of copper is 30×10^−5 g C^−1, the mass of copper deposited on the electrode will be
22
Aug
A steady current of 1.5 A flows through a copper voltameter for 10 min. If the electrochemical equivalent of copper is 30×10^−5 g C^−1, the mass of copper deposited on the electrode will be A steady current of 1.5 A flows through a copper voltameter for 10 min. If the electrochemical equivalent of copper is [...]